The mathematics of numbers (integers, rational numbers, real numbers, or complex numbers) under the operations of addition, subtraction, multiplication, and division.

(mathematics) Of, relating to, or using arithmetic; arithmetical. / (arithmetic) Of a progression, mean, etc, computed solely using addition.

In an arithmetic (adjective; stress on the third syllable) / arithmetical manner; in terms of arithmetic (noun; stress on the second syllable).

(mathematics) Of or pertaining to arithmetic, particularly the functions of arithmetic (noun; stress on the second syllable).

plural of arithmetic

The state or quality of being arithmetic.

plural of arithmetization

(mathematics) The treatment of mathematics by methods involving only the fundamental concepts and operations of arithmetic.

present participle of arithmetize

(transitive) To treat (a mathematical system) by methods involving only the fundamental concepts and operations of arithmetic.